deferred class IUP_WIDGET_FLAT_SCROLL_BOX
-- Complementary attributes when a flat scrollbar is used (a drawn scrollbar).
--
-- Used in IUP_FLAT_SCROLL_BOX, and in IUP_MATRIX when FLATSCROLLBAR is defined.

inherit
	IUP_WIDGET_INTERNALS
	
feature {ANY}

	set_flat_scroll_bar (style: STRING)
		require
			is_valid_style(style)
		do
			iup_open.set_attribute(Current, "FLATSCROLLBAR", style)
		end

	-- Attributes

	set_rgb_back_color (red: INTEGER; green: INTEGER; blue: INTEGER)
		-- (non inheritable): color used as background for the scrollbar. By 
		-- default it will inherit from BGCOLOR.
		do
			iup_open.set_attribute(Current, "SB_BACKCOLOR", rgb_to_string(red, green, blue))
		end

	get_rgb_back_color: TUPLE[INTEGER, INTEGER, INTEGER]
		do
			Result := iup_open.get_rgb(Current, "SB_BACKCOLOR")
		end

	reset_back_color
		-- Reset the back color to the default value.
		do
			iup_open.reset_attribute(Current, "SB_BACKCOLOR")
		end

	set_rgb_fore_color (red: INTEGER; green: INTEGER; blue: INTEGER)
		-- (non inheritable): handler and arrow color. Default: "220 220 220". 
		-- Used instead of FGCOLOR to avoid inheritance problems.
		do
			iup_open.set_attribute(Current, "SB_FORECOLOR", rgb_to_string(red, green, blue))
		end

	get_rgb_fore_color: TUPLE[INTEGER, INTEGER, INTEGER]
		do
			Result := iup_open.get_rgb(Current, "SB_FORECOLOR")
		end

	reset_fore_color
		-- Reset the fore color to the default value.
		do
			iup_open.reset_attribute(Current, "SB_FORECOLOR")
		end

	set_rgb_high_color (red: INTEGER; green: INTEGER; blue: INTEGER)
		-- (non inheritable): handler and arrow color when highlight.
		-- Default: "132 132 132".
		do
			iup_open.set_attribute(Current, "SB_HIGHCOLOR", rgb_to_string(red, green, blue))
		end

	get_rgb_high_color: TUPLE[INTEGER, INTEGER, INTEGER]
		do
			Result := iup_open.get_rgb(Current, "SB_HIGHCOLOR")
		end

	reset_high_color
		-- Reset the high color to the default value.
		do
			iup_open.reset_attribute(Current, "SB_HIGHCOLOR")
		end

	set_rgb_press_color (red: INTEGER; green: INTEGER; blue: INTEGER)
		-- (non inheritable): handler and arrow color when pressed.
		-- Default: "96 96 96".
		do
			iup_open.set_attribute(Current, "SB_PRESSCOLOR", rgb_to_string(red, green, blue))
		end

	get_rgb_press_color: TUPLE[INTEGER, INTEGER, INTEGER]
		do
			Result := iup_open.get_rgb(Current, "SB_PRESSCOLOR")
		end

	reset_press_color
		-- Reset the press color to the default value.
		do
			iup_open.reset_attribute(Current, "SB_PRESSCOLOR")
		end

	set_scroll_bar_size (size: INTEGER)
		-- (non inheritable): The width of the vertical scrollbar or the height 
		-- of the horizontal scrollbar. Default: 15.
		do
			iup_open.set_attribute(Current, "SCROLLBARSIZE", size.out)
		end

	get_scroll_bar_size: INTEGER
		local
			str: STRING
		do
			str := iup_open.get_attribute(Current, "SCROLLBARSIZE")

			Result := str.to_integer
		end

	set_show_arrows (state: BOOLEAN)
		-- (non inheritable): Allow to show or hide the arrows. Default: "True".
		do
			iup_open.set_attribute(Current, "SHOWARROWS", boolean_to_yesno(state))
		end

	get_show_arrows: BOOLEAN
		local
			str: STRING
		do
			str := iup_open.get_attribute(Current, "SHOWARROWS")

			Result := yesno_to_boolean(str)
		end

	set_show_floating (state: BOOLEAN)
		-- (non inheritable): the scrollbar is shown only when used, over the 
		-- space it occupied. Move the mouse over the scrollbar area to show the 
		-- scrollbars. They are automatically hidden after not being used by the 
		-- time defined in FLOATINGDELAY. Default: "False".
		do
			iup_open.set_attribute(Current, "SHOWFLOATING", boolean_to_yesno(state))
		end

	get_show_floating: BOOLEAN
		local
			str: STRING
		do
			str := iup_open.get_attribute(Current, "SHOWFLOATING")

			Result := yesno_to_boolean(str)
		end

	set_show_transparent (state: BOOLEAN)
		-- (non inheritable): This makes the flat scrollbar semi transparent and 
		-- only interactive trough its handler. It implies in 
		-- set_show_arrows=False and set_show_floating=True.
		do
			iup_open.set_attribute(Current, "SHOWTRANSPARENT", boolean_to_yesno(state))
		end

	set_floating_delay (delay: INTEGER)
		-- (non inheritable): time to hide the scrollbar when SHOWFLOATING=Yes in 
		-- milliseconds. Default: 2000.
		do
			iup_open.set_attribute(Current, "FLOATINGDELAY", delay.out)
		end

	get_floating_delay: INTEGER
		local
			str: STRING
		do
			str := iup_open.get_attribute(Current, "FLOATINGDELAY")

			Result := str.to_integer
		end

	set_arrow_images (state: BOOLEAN)
		-- (non inheritable): replace the drawn arrows by the following images.
		-- Default: "False".
		do
			iup_open.set_attribute(Current, "ARROWIMAGES", boolean_to_yesno(state))
		end

	get_arrow_images: BOOLEAN
		local
			str: STRING
		do
			str := iup_open.get_attribute(Current, "ARROWIMAGES")

			Result := yesno_to_boolean(str)
		end

	set_image_left (name: STRING)
		-- Arrow image name (the attribute is relative to where the arrow is 
		-- pointing). Use set_widget_name to associate an image to a name. 
		-- See also IUP_IMAGE. IMPORTANT = all images must be square with side 
		-- equals to SCROLLBARSIZE.
		do
			iup_open.set_attribute(Current, "SB_IMAGELEFT", name)
		end

	get_image_left: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGELEFT")
		end

	set_image_right (name: STRING)
		-- Arrow image name (the attribute is relative to where the arrow is 
		-- pointing). Use set_widget_name to associate an image to a name. 
		-- See also IUP_IMAGE. IMPORTANT = all images must be square with side 
		-- equals to SCROLLBARSIZE.
		do
			iup_open.set_attribute(Current, "SB_IMAGERIGHT", name)
		end

	get_image_right: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGERIGHT")
		end

	set_image_top (name: STRING)
		-- Arrow image name (the attribute is relative to where the arrow is 
		-- pointing). Use set_widget_name to associate an image to a name. 
		-- See also IUP_IMAGE. IMPORTANT = all images must be square with side 
		-- equals to SCROLLBARSIZE.
		do
			iup_open.set_attribute(Current, "SB_IMAGETOP", name)
		end

	get_image_top: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGETOP")
		end

	set_image_bottom (name: STRING)
		-- Arrow image name (the attribute is relative to where the arrow is 
		-- pointing). Use set_widget_name to associate an image to a name. 
		-- See also IUP_IMAGE. IMPORTANT = all images must be square with side 
		-- equals to SCROLLBARSIZE.
		do
			iup_open.set_attribute(Current, "SB_IMAGEBOTTOM", name)
		end

	get_image_bottom: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGEBOTTOM")
		end

	set_image_left_highlight (name: STRING)
		-- (non inheritable): Arrow image name of the element in highlight state. 
		-- If it is not defined then the IMAGELEFT is used.
		do
			iup_open.set_attribute(Current, "SB_IMAGELEFTHIGHLIGHT", name)
		end

	get_image_left_highlight: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGELEFTHIGHLIGHT")
		end

	set_image_right_highlight (name: STRING)
		-- (non inheritable): Arrow image name of the element in highlight state. 
		-- If it is not defined then the IMAGERIGHT is used.
		do
			iup_open.set_attribute(Current, "SB_IMAGERIGHTHIGHLIGHT", name)
		end

	get_image_right_highlight: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGERIGHTHIGHLIGHT")
		end

	set_image_top_highlight (name: STRING)
		-- (non inheritable): Arrow image name of the element in highlight state. 
		-- If it is not defined then the IMAGETOP is used.
		do
			iup_open.set_attribute(Current, "SB_IMAGETOPHIGHLIGHT", name)
		end

	get_image_top_highlight: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGETOPHIGHLIGHT")
		end

	set_image_bottom_highlight (name: STRING)
		-- (non inheritable): Arrow image name of the element in highlight state. 
		-- If it is not defined then the IMAGEBOTTOM is used.
		do
			iup_open.set_attribute(Current, "SB_IMAGEBOTTOMHIGHLIGHT", name)
		end

	get_image_bottom_highlight: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGEBOTTOMHIGHLIGHT")
		end

	set_image_left_inactive (name: STRING)
		-- (non inheritable): Arrow image name of the element when inactive. If 
		-- it is not defined then the IMAGELEFT is used and its colors will be 
		-- replaced by a modified version creating the disabled effect. 
		do
			iup_open.set_attribute(Current, "SB_IMAGELEFTINACTIVE", name)
		end

	get_image_left_inactive: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGELEFTINACTIVE")
		end

	set_image_right_inactive (name: STRING)
		-- (non inheritable): Arrow image name of the element when inactive. If 
		-- it is not defined then the IMAGERIGHT is used and its colors will be 
		-- replaced by a modified version creating the disabled effect. 
		do
			iup_open.set_attribute(Current, "SB_IMAGERIGHTINACTIVE", name)
		end

	get_image_right_inactive: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGERIGHTINACTIVE")
		end

	set_image_top_inactive (name: STRING)
		-- (non inheritable): Arrow image name of the element when inactive. If 
		-- it is not defined then the IMAGETOP is used and its colors will be 
		-- replaced by a modified version creating the disabled effect. 
		do
			iup_open.set_attribute(Current, "SB_IMAGETOPINACTIVE", name)
		end

	get_image_top_inactive: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGETOPINACTIVE")
		end
	
	set_image_bottom_inactive (name: STRING)
		-- (non inheritable): Arrow image name of the element when inactive. If 
		-- it is not defined then the IMAGEBOTTOM is used and its colors will be 
		-- replaced by a modified version creating the disabled effect. 
		do
			iup_open.set_attribute(Current, "SB_IMAGEBOTTOMINACTIVE", name)
		end

	get_image_bottom_inactive: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGEBOTTOMINACTIVE")
		end

	set_image_left_press (name: STRING)
		-- (non inheritable): Arrow image name of the element in pressed state. 
		-- If it is not defined then the IMAGELEFT is used.
		do
			iup_open.set_attribute(Current, "SB_IMAGELEFTPRESS", name)
		end

	get_image_left_press: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGELEFTPRESS")
		end

	set_image_right_press (name: STRING)
		-- (non inheritable): Arrow image name of the element in pressed state. 
		-- If it is not defined then the IMAGERIGHT is used.
		do
			iup_open.set_attribute(Current, "SB_IMAGERIGHTPRESS", name)
		end

	get_image_right_press: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGERIGHTPRESS")
		end

	set_image_top_press (name: STRING)
		-- (non inheritable): Arrow image name of the element in pressed state. 
		-- If it is not defined then the IMAGETOP is used.
		do
			iup_open.set_attribute(Current, "SB_IMAGETOPPRESS", name)
		end

	get_image_top_press: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGETOPPRESS")
		end
	
	set_image_bottom_press (name: STRING)
		-- (non inheritable): Arrow image name of the element in pressed state. 
		-- If it is not defined then the IMAGEBOTTOM is used.
		do
			iup_open.set_attribute(Current, "SB_IMAGEBOTTOMPRESS", name)
		end

	get_image_bottom_press: STRING
		do
			Result := iup_open.get_attribute(Current, "SB_IMAGEBOTTOMPRESS")
		end

	-- Validations

	is_valid_style (value: STRING): BOOLEAN
		do
			if value.is_equal("YES") or
				value.is_equal("VERTICAL") or
				value.is_equal("HORIZONTAL") then
				Result := True
			else
				Result := False
			end
		end

end

-- The MIT License (MIT)

-- Copyright (c) 2017, 2019 by German A. Arias

-- Permission is hereby granted, free of charge, to any person obtaining a copy
-- of this software and associated documentation files (the "Software"), to deal
-- in the Software without restriction, including without limitation the rights
-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-- copies of the Software, and to permit persons to whom the Software is
-- furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in 
-- all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-- SOFTWARE.
